People who choose to eat very little carbs and lots of fat tend to have worse eating habits than vegans, vegetarians, and regular meat-eaters—mainly because they eat fewer whole grains, fruits, and healthy fats.

People who switch to a low-fat vegan diet for 4 months eat healthier overall, and this healthier eating is linked to losing weight, losing body fat, and improving blood sugar control.

People who eat low-carb, high-fat diets tend to eat way less fiber than vegans, vegetarians, or meat-eaters, and only 8% of them get enough fiber — but they still get enough vitamins because they take supplements.

Eating too many unhealthy carbs or too much meat and processed food—even if you're on a low-carb or low-fat diet—can raise your risk of heart disease by about 12–14% compared to eating healthier versions of those same diets.

If you eat a low-carb diet full of plants like nuts, beans, and whole grains instead of meat and white bread, you’re less likely to get heart disease — it’s not just about cutting carbs, but what you replace them with.

Cutting down on fats—especially added fats—in your diet for 4 months helps you lose body fat, even if you’re not eating fewer calories overall.